METHOD FOR EVALUATING BRITTLE FRACTURE PROPAGATION ARRESTABILITY OF THICK STEEL PLATE

摘要

And provides a simple method of evaluating the brittle fracture propagation stopping performance of the steel sheet after a small test. As a small test, a deformation press notch Charpy impact test was carried out by a deformation press notch Charpy impact test piece in which the picking position was the central position of the plate thickness and the press notch was introduced in the direction of propagation of the brittle crack, and the deformation press notch The brittle fracture propagation stopping performance is evaluated based on the temperature (캜) at which the Charpy absorbed energy is 40 J: pT _40J .